added script to compile the CPython stdlib

Tools/cystdlib.py

+from distutils.core import setup
+from Cython.Build import cythonize
+from Cython.Compiler import Options
+
+import sys
+pyver = sys.version_info[0]
+try:
+    sys.argv.remove('--current-python')
+except ValueError:
+    pass
+else:
+    # assume that the stdlib is where the "os" module lives
+    import os
+    os.chdir(os.path.dirname(os.__file__))
+
+try:
+    sys.argv.remove('--parallel')
+    import multiprocessing
+    parallel_compiles = multiprocessing.cpu_count() * 2
+except (ValueError, ImportError):
+    parallel_compiles = None
+
+# improve Python compatibility by allowing some broken code
+Options.error_on_unknown_names = False
+
+excludes = ['**/test/**/*.py', '**/tests/**/*.py', '**/__init__.py']
+
+default_directives = dict(auto_cpdef=True)
+
+setup(
+  name = 'stuff',
+  ext_modules = cythonize(["**/*.py"],
+                          exclude=excludes,
+                          exclude_failures=True,
+                          language_level=pyver,
+#                          compiler_directives=dict(auto_cpdef=True),
+                          nthreads=parallel_compiles,
+                          ),
+)